404007400667 has 8 divisors (see below), whose sum is σ = 435109078320. Its totient is φ = 372909178080.

The previous prime is 404007400661. The next prime is 404007400759. The reversal of 404007400667 is 766004700404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404007400667 - 2⁸ = 404007400411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404007400667.

It is not an unprimeable number, because it can be changed into a prime (404007400661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618317 + ... + 1091022.

It is an arithmetic number, because the mean of its divisors is an integer number (54388634790).

Almost surely, 2^404007400667 is an apocalyptic number.

404007400667 is a deficient number, since it is larger than the sum of its proper divisors (31101677653).

404007400667 is a wasteful number, since it uses less digits than its factorization.

404007400667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727533.

The product of its (nonzero) digits is 112896, while the sum is 38.

The spelling of 404007400667 in words is "four hundred four billion, seven million, four hundred thousand, six hundred sixty-seven".